A device for improving paper breakage problems during the production of high-strength corrugated base paper

Abstract

This utility model relates to a device for improving the paper breakage problem during the production of high-strength corrugated base paper. It solves the technical problems such as poor cleaning effect of existing felt. It includes a high-pressure spray pipe disposed on one side of the felt body, with several nozzle mounting holes arranged sequentially on one side of the high-pressure spray pipe facing the felt body. Each nozzle mounting hole has a high-pressure nozzle with a filter assembly installed via a detachable structure, and the filter assembly extends to the circumferential inner side of the high-pressure spray pipe. The high-pressure spray pipe is connected to a high-pressure water pipe via a water pump, and the water pump is connected to a water pump drive mechanism. The high-pressure water pipe is connected to at least one delivery pipe, and the delivery pipe is equipped with a filter. The advantages are: dual filtration through the filter and filter assembly ensures the filtration effect of the cleaning water, guaranteeing the cleaning effect; the detachable structure facilitates the replacement of the high-pressure nozzle and filter assembly, improving replacement efficiency and ensuring the cleaning effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of paper machine felt cleaning equipment, specifically relating to a device for improving the paper breakage problem in the production process of high-strength corrugated base paper. Background Technology

[0002] In papermaking, the felt of a paper machine plays a crucial role in dewatering, supporting the paper web, and ensuring paper quality. Its water filtration, air permeability, and cleanliness directly affect the stable and high output of the paper machine. Currently, felt cleaning mainly relies on high-pressure water spray systems. However, the water quality of existing high-pressure water spray systems is poor, and impurities can accelerate nozzle wear and clogging, leading to uneven spraying and creating cleaning dead zones. Traditional mobile spraying methods consume a lot of water and easily push impurities into the felt. Nail clogging causes uneven water permeability, directly affecting the dewatering effect of the felt. This results in excessively high moisture content in the paper when it enters the drying section, leading to the risk of paper breakage and reduced production efficiency.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a paper machine felt rinsing device [201921965654.2], which includes a mounting plate, a high-pressure pump, a water inlet hose, a rinsing pipe, and nozzles. The bottom of the mounting plate is rotatably connected to a rotating plate via a rotating shaft, and the bottom of the rotating plate is fixedly connected to a rinsing pipe. The bottom of the rinsing pipe is connected to multiple sets of nozzles.

[0004] The above solution has solved the problem of poor cleaning effect of existing high-pressure water spray systems to a certain extent. However, the solution still has many shortcomings. For example, filtering water through a single filter screen can easily lead to incomplete filtration and poor cleaning effect on the cloth. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a device that improves the paper breakage problem during the production of high-strength corrugated base paper.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A device for improving paper breakage during the production of high-strength corrugated base paper includes a high-pressure spray pipe disposed on one side of the felt body. A plurality of nozzle mounting holes facing the felt body are sequentially provided on one side of the high-pressure spray pipe. Each nozzle mounting hole is equipped with a high-pressure nozzle having a filter assembly via a detachable structure. The filter assembly extends to the circumferential inner side of the high-pressure spray pipe. The high-pressure spray pipe is connected to a high-pressure water pipe via a water pump. The water pump is connected to a water pump drive mechanism. The high-pressure water pipe is connected to at least one delivery pipe, and a filter is provided on the delivery pipe. The detachable structure facilitates the replacement and disassembly of the high-pressure nozzle, ensuring effective spray cleaning of the felt body. The water pump and water pump drive mechanism pressurize the water flow, improving the cleaning effect. The dual filtration of the filter assembly and filter ensures the filtration effect and guarantees the quality of the cleaning water.

[0007] In the aforementioned device for improving paper breakage during the production of high-strength corrugated base paper, there is one conveying pipe connected in series with a high-pressure water pipe, through which cleaning water can be conveyed to the high-pressure water pipe for pressurization; or, there are two conveying pipes connected in parallel with the high-pressure water pipes respectively.

[0008] In the aforementioned device for improving paper breakage during the production of high-strength corrugated base paper, a first switching valve and a second switching valve are respectively provided on the conveying pipe. The first switching valve is located on the side of the filter away from the high-pressure water pipe, and the second switching valve is located on the side of the filter closer to the high-pressure water pipe. The first switching valve can control the opening or closing of the cleaning water in the conveying pipe, and the second switching valve allows the user to control the flow rate of the cleaning water in the conveying pipe according to the usage situation, ensuring the cleaning effect and improving the user experience.

[0009] In the aforementioned device for improving paper breakage during the production of high-strength corrugated base paper, the water pump drive mechanism includes a transmission side connected to the water pump. The transmission side is connected to the water pump driver. The water pump driver and the transmission side facilitate the control of the water pump, facilitate the pressurization of the cleaning water, and improve the cleaning effect of the cleaning water on the felt.

[0010] In the aforementioned device for improving paper breakage during the production of high-strength corrugated base paper, the filter has an 80-micron filter element, which can improve the filtration effect on the cleaning water, ensure the water quality of the cleaning water, and guarantee the cleaning effect.

[0011] In the aforementioned device for improving paper breakage during the production of high-strength corrugated base paper, the high-pressure nozzle includes a nozzle seat with an inner cavity and an open end. The open end of the nozzle seat is threadedly connected to a nozzle head with spray holes. The end of the nozzle seat away from the open end has a hollow connecting seat, and a top pressure spring and a water-dividing rod abutting against the top pressure spring are provided inside the nozzle seat. One end of the top pressure spring has a movable plug extending to the inner side of one end of the connecting seat. The nozzle seat can be easily connected to the cleaning water in the high-pressure spray pipe through the connecting seat, and the minimum pressure value of the high-pressure nozzle can be easily controlled through the top pressure spring. The water-dividing rod can reduce turbulence and ensure spray stability. The movable plug, in cooperation with the top pressure spring, can control the opening and closing of the high-pressure nozzle. The top pressure spring, water-dividing rod, and movable plug can improve the spray stability of the high-pressure nozzle and ensure the cleaning effect.

[0012] In the aforementioned device for improving paper breakage during the production of high-strength corrugated base paper, the detachable structure includes internal threads respectively provided on the inner side of the nozzle mounting hole, and the connecting seat has external threads matching the internal threads on the outer side. The internal and external threads facilitate the installation, removal, and replacement of the high-pressure nozzle, ensuring the spraying effect of the high-pressure nozzle.

[0013] In the aforementioned device for improving paper breakage during the production of high-strength corrugated base paper, the filter assembly includes a cylindrical filter screen disposed at the end of the connecting seat away from the nozzle seat and inserted into the inside of the high-pressure spray pipe. One end of the cylindrical filter screen is connected to the inside of the connecting seat, and the other end is closed. The cylindrical filter screen has a plurality of filter holes on its outer circumferential side and at the closed end. The washing water can be filtered twice through the cylindrical filter screen and the filter holes, which can further improve the water quality of the washing water and ensure the washing effect.

[0014] In the aforementioned device for improving paper breakage during the production of high-strength corrugated base paper, the cylindrical filter screen and the connecting seat are coaxially arranged and connected by welding. The detachable structure facilitates the replacement of the cylindrical filter screen, improving replacement efficiency and ensuring filtration effect.

[0015] In the aforementioned device for improving paper breakage during the production of high-strength corrugated base paper, the fineness of the felt is 100 dtex, which improves the water filtration effect and enhances the cleaning effect on the felt.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. Dual filtration through filters and filtration components ensures the filtration effect of the cleaning water and guarantees the cleaning effect of the cleaning water.

[0018] 2. The detachable structure facilitates the replacement of high-pressure nozzles and filter components, improving replacement efficiency and ensuring cleaning effectiveness. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0020] Figure 2 This is a schematic diagram of the high-pressure nozzle in Embodiment 1 of this utility model.

[0021] Figure 3 This is an exploded view of the structure in Embodiment 1 of this utility model.

[0022] Figure 4 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0023] In the diagram: 1. Fabric body; 2. High-pressure nozzle; 3. Nozzle mounting hole; 4. Detachable structure; 5. Internal thread; 6. External thread; 7. Filter assembly; 8. Cylindrical filter screen; 9. Filter hole; 10. High-pressure nozzle; 11. Nozzle seat; 2. Nozzle head; 3. Connecting seat; 4. Top pressure spring; 52. Water divider rod; 6. Movable plug; 7. Water pump; 8. High-pressure water pipe; 9. Water pump drive mechanism; 10. Transmission side; 11. Water pump driver; 12. Delivery pipe; 13. Filter; 14. First switch valve; 15. Second switch valve; 16. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] like Figure 1 , Figure 2 As shown, this device for improving paper breakage during the production of high-strength corrugated base paper includes a high-pressure spray pipe 2 disposed on one side of the felt body 1. A plurality of nozzle mounting holes 21 are sequentially arranged on one side of the high-pressure spray pipe 2, facing the felt body 1. Each nozzle mounting hole 21 is connected to a high-pressure nozzle 5 with a filter assembly 4 via a detachable structure 3. The filter assembly 4 extends to the inner circumference of the high-pressure spray pipe 2. The high-pressure spray pipe 2 is connected to a high-pressure water pipe 7 via a water pump 6. The water pump 6 is connected to a water pump drive mechanism 8. The high-pressure water pipe 7 is connected to at least one delivery pipe 9, and a filter 91 is provided on the delivery pipe 9. The detachable structure 3 facilitates the replacement and disassembly of the high-pressure nozzle 5, ensuring the effective spray cleaning of the felt body 1. The water pump 6 and the water pump drive mechanism 8 can pressurize the water flow, improving the cleaning effect. The dual filtration by the filter assembly 4 and the filter 91 ensures the filtration effect and guarantees the quality of the cleaning water.

[0027] Specifically, there is one delivery pipe 9 connected in series with the high-pressure water pipe 7. The cleaning water can be delivered to the high-pressure water pipe 7 for pressurization through the delivery pipe 9.

[0028] The conveying pipe 9 is equipped with a first switching valve 92 and a second switching valve 93. The first switching valve 92 is located on the side of the filter 91 away from the high-pressure water pipe 7, and the second switching valve 93 is located on the side of the filter 91 closer to the high-pressure water pipe 7. The first switching valve 92 can control the opening or closing of the cleaning water in the conveying pipe 9, and the second switching valve 93 can facilitate the user to control the flow rate of the cleaning water in the conveying pipe 9 according to the usage situation, so as to ensure the cleaning effect and improve the user experience.

[0029] like Figure 1 , Figure 2 , Figure 3 As shown, the water pump drive mechanism 8 includes a transmission side 81 connected to the water pump 6. The transmission side 81 is connected to the water pump driver 82. The water pump driver 82 and the transmission side 81 can facilitate the control of the water pump 6, facilitate the pressurization of the cleaning water, and improve the cleaning effect of the cleaning water on the fabric.

[0030] Furthermore, filter 91 has an 80-micron filter element, which can improve the filtration effect of cleaning water, ensure the water quality of cleaning water, and ensure the cleaning effect.

[0031] The high-pressure nozzle 5 includes a nozzle seat 51 with an inner cavity and an open end. The open end of the nozzle seat 51 is threadedly connected to a nozzle head 52 with spray holes. The end of the nozzle seat 51 away from the open end has a hollow connecting seat 53. Inside the nozzle seat 51, there is a top pressure spring 54 and a water-dividing rod 55 that abuts against the top pressure spring 54. One end of the top pressure spring 54 has a movable plug 56 extending to the inner side of one end of the connecting seat 53. The nozzle seat 51 can be easily connected to the cleaning water in the high-pressure spray pipe 2 through the connecting seat 53. The top pressure spring 54 can easily control the minimum pressure value of the high-pressure nozzle 5. The water-dividing rod 55 can reduce turbulence and ensure spray stability. The movable plug 56 cooperates with the top pressure spring 54 to control the opening and closing of the high-pressure nozzle 5. The top pressure spring 54, water-dividing rod 55 and movable plug 56 can improve the spray stability of the high-pressure nozzle 5 and ensure the cleaning effect.

[0032] Combination Figure 1 , Figure 2 , Figure 3 As shown, the detachable structure 3 includes internal threads 31 respectively provided on the inner side of the nozzle mounting hole 21, and external threads 32 that match the internal threads 31 on the outer side of the connecting seat 53. The internal threads 31 and external threads 32 facilitate the installation, removal and replacement of the high-pressure nozzle 5, ensuring the spraying effect of the high-pressure nozzle 5.

[0033] The filter assembly 4 includes a cylindrical filter screen 41 disposed at the end of the connecting seat 53 away from the nozzle seat 51 and inserted into the inside of the high-pressure spray pipe 2. One end of the cylindrical filter screen 41 is connected to the inside of the connecting seat 53 and the other end is closed. The cylindrical filter screen 41 has a number of filter holes 42 on its outer circumference and the closed end. The cleaning water can be filtered twice through the cylindrical filter screen 41 and the filter holes 42, which can further improve the water quality of the cleaning water and ensure the cleaning effect.

[0034] Specifically, the cylindrical filter screen 41 and the connecting seat 53 are coaxially arranged and connected by welding. The detachable structure 3 facilitates the replacement of the cylindrical filter screen 41, improves replacement efficiency, and ensures filtration effect.

[0035] Combination Figure 1 As shown, the fineness of the pile of the fabric 1 is 100 dtex, which can improve the water filtration effect and the cleaning effect of the fabric 1.

[0036] The principle of this embodiment is as follows: the cleaning water is filtered for the first time through the filter 91 on the delivery pipe 9, and pressurized by the water pump 6 and the horizontal drive mechanism 8 to improve the cleaning effect of the cleaning water. The filter assembly 4 in the high-pressure spray pipe 2 is connected to the high-pressure nozzle 5, and the filter assembly 4 performs a second filtration to ensure the water quality filtration effect of the cleaning water and ensure the cleaning effect. In addition, the detachable structure 3 makes it easy to replace the filter assembly 4 and the high-pressure nozzle 5 to ensure the cleaning effect.

[0037] Example 2

[0038] This embodiment is basically the same as embodiment one in structure and working principle, except that, as follows: Figure 4 As shown, there are two delivery pipes 9, which are connected in parallel with the high-pressure water pipes 7. When it is necessary to replace the filter 91 of one line, the first switch valve 92 of this line is closed and the first switch valve 92 of the other line is opened so that the cleaning water flows to the other filter 91, which can ensure that the filtration is not stopped and the cleaning efficiency is guaranteed.

[0039] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0040] Although this document frequently uses terms such as 1. felt body, 2. high-pressure nozzle, 21. nozzle mounting hole, 3. detachable structure, 31. internal thread, 32. external thread, 4. filter assembly, 41. cylindrical filter screen, 42. filter hole, 5. high-pressure nozzle, 51. nozzle seat, 52. nozzle head, 53. connecting seat, 54. top pressure spring, 55. water divider rod, 56. movable plug, 6. water pump, 7. high-pressure water pipe, 8. water pump drive mechanism, 81. transmission side, 82. water pump driver, 9. delivery pipe, 91. filter, 92. first switching valve, 93. the other terms are not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A device for improving paper breakage during the production of high-strength corrugated base paper, comprising a high-pressure nozzle (2) disposed on one side of a felt body (1), wherein a plurality of nozzle mounting holes (21) are sequentially provided on one side of the high-pressure nozzle (2) facing the felt body (1), characterized in that, The nozzle mounting hole (21) is provided with a high-pressure nozzle (5) with a filter assembly (4) through a detachable structure (3), and the filter assembly (4) extends to the circumferential inner side of the high-pressure nozzle (2). The high-pressure nozzle (2) is connected to a high-pressure water pipe (7) through a water pump (6). The water pump (6) is connected to a water pump drive mechanism (8). The high-pressure water pipe (7) is connected to at least one delivery pipe (9), and a filter (91) is provided on the delivery pipe (9).

2. The device for improving the problem of paper breakage in the production process of high-strength corrugated paper according to claim 1, characterized in that, The number of the conveying pipe (9) is one and it is connected in series with the high-pressure water pipe (7); or, the number of the conveying pipe (9) is two and they are connected in parallel with the high-pressure water pipe (7).

3. The device for improving the problem of paper breakage in the production process of high-strength corrugated paper according to claim 1, characterized in that, The delivery pipe (9) is provided with a first switch valve (92) and a second switch valve (93). The first switch valve (92) is located on the side of the filter (91) away from the high-pressure water pipe (7), and the second switch valve (93) is located on the side of the filter (91) close to the high-pressure water pipe (7).

4. The device for improving the problem of paper breakage in the production process of high-strength corrugated paper according to claim 1, characterized in that, The water pump drive mechanism (8) includes a transmission side (81) connected to the water pump (6), and the transmission side (81) is connected to the water pump driver (82).

5. The device for improving the problem of paper breakage in the production process of high-strength corrugated paper according to claim 1, characterized in that, The filter (91) has an 80-micron filter element.

6. The device for improving the problem of paper breakage in the production process of high-strength corrugated paper according to claim 1, characterized in that, The high-pressure nozzle (5) includes a nozzle seat (51) with an inner cavity and an open end. The open end of the nozzle seat (51) is threadedly connected to a nozzle head (52) with a spray hole. The end of the nozzle seat (51) away from the open end has a hollow connecting seat (53) and a top pressure spring (54) and a water-dividing rod (55) abutting against the top pressure spring (54) are provided inside the nozzle seat (51). One end of the top pressure spring (54) has a movable plug (56) extending to the inner side of one end of the connecting seat (53).

7. The apparatus for improving paper breakage during the production of high-strength corrugated base paper according to claim 6, characterized in that, The detachable structure (3) includes internal threads (31) respectively provided on the inner side of the nozzle mounting hole (21) and external threads (32) that match the internal threads (31) on the outer side of the connecting seat (53).

8. The device for improving the problem of paper breakage in the production process of high-strength corrugated paper according to claim 6, characterized in that, The filter assembly (4) includes a cylindrical filter screen (41) disposed at one end of the connecting seat (53) away from the nozzle seat (51) and inserted into the inside of the high-pressure nozzle (2). One end of the cylindrical filter screen (41) is connected to the inside of the connecting seat (53) and the other end is closed. The cylindrical filter screen (41) has a plurality of filter holes (42) on its circumferential outer side and the closed end.

9. The apparatus for improving paper breakage during the production of high-strength corrugated base paper according to claim 8, characterized in that, The cylindrical filter screen (41) and the connecting seat (53) are coaxially arranged and connected by welding.

10. The device for improving the problem of paper breakage in the production process of high-strength corrugated paper according to claim 1, characterized in that, The fineness of the pile of the fabric body (1) is 100 dtex.

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